R1:d032eea216b4

Discourage new users from exploring too much

Summary: Fixes T11834. Actually adding the step wasn't in the `if (...)` block. Also, typo fix.

Test Plan: Saw only one "Explore" on `/guides/`.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T11834

Differential Revision: https://secure.phabricator.com/D16828